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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4192) Optimize HLog for Throughput Using Delayed RPCs
Date Thu, 31 Jul 2014 01:32:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14080375#comment-14080375

Sean Busbey commented on HBASE-4192:

Part 1 was handled via HBASE-4487. Is Part 2 OBE from the changes in HBASE-8755?

> Optimize HLog for Throughput Using Delayed RPCs
> -----------------------------------------------
>                 Key: HBASE-4192
>                 URL: https://issues.apache.org/jira/browse/HBASE-4192
>             Project: HBase
>          Issue Type: New Feature
>          Components: wal
>    Affects Versions: 0.92.0
>            Reporter: Vlad Dogaru
>            Priority: Minor
> Introduce a new HLog configuration parameter (batchEntries) for more aggressive batching
of appends.  If this is enabled, HLog appends are not written to the HLog writer immediately,
but batched and written either periodically or when a sync is requested.  Because sync times
become larger, they use delayed RPCs to free up RPC handler threads.

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